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Bushfire Sprinkler Systems in the Perth Hills
Custom-designed for your property, built in 316 stainless steel and engineered for reliable water delivery.
Every property is different, which is why roof sprinkler systems should be designed specifically for the home. From the roof layout and pipework to the available water supply and pump system, Andrew designs each installation around the property rather than using a one-size-fits-all approach. He can assess your property, explain what is required and provide a system designed for your home.
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- Licensed & insured
- Perth Hills based
- Upfront pricing
- Protective Science
What a Bushfire Sprinkler System Is Actually For
Ember attack is the cause of 80 per cent of home losses in Australian bushfires.
Wind carries burning material ahead of a fire front, it lands on roofs, in gutters, under decks and against sheds, and smoulders until it finds something that will take, according to the
What it isn't is a firefighting system. It won't hold back a fire front, it isn't a substitute for clearing vegetation and maintaining your property, and it isn't a reason to stay when the advice is to leave.
A roof sprinkler system is designed to make it harder for those embers to take hold.
Running before and during ember attack, it wets down the roof, gutters and other exposed areas of the building, the places where wind-blown embers are most likely to land and collect.
It's one more layer of protection, designed to reduce the chance of ember attack turning into ignition.
What Bushfire Sprinkler Systems Can Cover
Not every property needs all of this. The design starts with which of these are actually exposed on your block.
- Primary Protection
The Roof Line
Sprinklers along the ridge or roof line, wetting the surface embers land on and the gutters they collect in.
Sheds and Outbuildings
Workshops, sheds and garages are often what catches first, then carries fire to the house.
Decks and Verandahs
Timber decking, pergolas and verandah roofs, where embers get in under the edges and sit.
Windows and Vulnerable Faces
The elevations most exposed to the prevailing wind and the bush behind the block.
Tanks, Pumps and Supply Lines
Protecting the water supply and pump setup the rest of the system depends on.
Boundary and Perimeter Lines
Wetting down fence lines and boundary vegetation where a block backs onto bush.
Remote and Monitored Start
Starting the system from off the property, and knowing that it actually ran.
Not sure what your block actually needs?
The system is designed around what's exposed on your property. Andrew walks it with you and tells you straight, call or send a quick enquiry.
Designed for Your Block, Built to Last
Four things shape a system that suits the property and holds up in the Hills.
- 01
Every Property in the Hills Is Different
Two houses on the same street can need completely different systems. One backs onto reserve with a long timber deck on the exposed side and a tank at the bottom of a slope. The next one along sits behind cleared paddock, has a Colorbond roof with simple lines and mains water at the boundary. The vegetation behind the block, the prevailing wind, the fall of the land, the roof material and pitch, the storey count and where the water sits all change what the right answer looks like.
This is why an off-the-shelf kit priced by house size tends to disappoint. It either over-protects the easy faces and under-protects the exposed one, or it’s specified around a flow rate the property can’t actually supply. A system that can’t be fed for long enough isn’t protection, it’s hardware on a roof.
- 02
How the System Gets Designed
It starts on site. Andrew walks the property, looking at what embers will land on, which faces take the prevailing wind, where the water comes from, and what pressure and flow it can actually deliver. That assessment is what everything else is built on.
The coverage layout comes first: which parts of the roof, gutters, decks, sheds and boundary need wetting. Only then is the pump and supply sized to feed that layout for the duration it needs to run. A system that empties the tank in eight minutes has been specified against the wrong number.
- 03
Sprinkler Selection and Water Coverage
Not every sprinkler head does the same job. Throw distance, droplet size and how much water each head draws all vary, and the wrong head in the wrong spot either wastes water or leaves gaps an ember can sit in.
Heads are spaced so their patterns overlap, with the prevailing wind taken into account so coverage holds up on the days it matters. The final layout is then checked against the flow and duration the property’s supply can genuinely sustain, because the best layout on paper is worthless if the tank or pump can’t feed it.
- 04
316 Stainless Steel Rooftop Pipework
Plastic pipe goes brittle with UV and heat, the two things a Hills roof has in abundance. It might survive a few summers, but the day you need it is not the day to find out it perished two winters ago.
Andrew builds rooftop runs in 316 stainless steel (pipework, brackets and fixings), chosen for lasting resistance to UV, radiant heat and corrosion. Every roof penetration is properly flashed and sealed, so the system that protects the roof doesn’t become the thing that leaks through it.
Pumps Sized for the Property
The pump is the part that decides whether the system works. It has to deliver the total flow every sprinkler head draws, at the pressure those heads need, up to the height of the roof, through the length of pipe on the property, including the fall from a tank sitting downhill. Get any of that wrong and the heads furthest from the pump dribble.
Sizing is a calculation, not a category. Andrew works out total demand from the sprinkler layout, adds the losses through the pipe runs and fittings, adds the static lift, then selects a pump that meets that duty with headroom rather than one that only just gets there on paper. Undersizing shows up as poor coverage. Gross oversizing wastes water and money and can chew through the supply faster than the design allows.
Where the pump sits matters too. It wants to be protected from radiant heat and embers itself, accessible for testing and service, and plumbed so that the supply can be isolated without shutting down the house.
Need a Pump for the Property?
Andrew can assess what the sprinkler system requires and provide the appropriate pump where needed.
Remote Start and System Monitoring
Fires don’t wait for you to be home. The four capabilities that matter most:
Remote Start
Start the system from your phone when you're away from the property.
Run Confirmation
Pump run confirmation sent back to your phone so you know it actually started.
Low Water & Pressure Alerts
Low water level and loss of pressure alerts, so you know the supply is failing before it runs dry.
Fault Notification
Fault, failure and power outage notifications so a problem doesn't sit unnoticed.
Also available
- Hard-wired manual start at the pump
- Battery backup on the control circuit
- Zone selection where the system is zoned
- Test run logging
- Second manual start point near the house
- Automatic run timer and shut-off options
- Scheduled test runs
- Integration with warning services
Not every property needs every item. Which of these are included is decided at design stage and itemised in the quote.
Knowing It's Working When You're Not There
A system you can start from your phone is only half the answer. The question that follows immediately is whether it actually started, and whether it’s still running. That’s what monitoring is for: pump run confirmation, pressure at the line, water level in the tank, and an alert when any of it stops behaving.
The same information is what makes maintenance real. Scheduled test runs with logged results mean you find the blocked head or the failed pressure switch in November, not on a 41-degree day in February. Most systems that disappoint people were fine when they were installed and never looked at again.
- Use What You've Got
Pump System Designed for Your Property
Where a pump is required, Andrew normally provides the diesel pump as part of the system. The pump system is designed around the property’s requirements, including the sprinkler coverage and available water supply. Where suitable tank water is available onsite, this can be used as part of the system.
If it isn’t, you’ll be told what the shortfall is in plain numbers rather than being sold a replacement on principle. Sometimes the fix is a smaller sprinkler layout matched to the pump you’ve got. Sometimes it’s staging the work: install the pipework and heads now, upgrade the pump when it suits. What doesn’t happen is a system designed around a pump that can’t feed it.
What an Installation Can Include
Scope varies by property. This is the full list a quote is drawn from, so you can see what’s in and what isn’t.
- Phase 01
Analysis & Design
- Site assessment of the property and its exposure
- System design and layout for the roof line
- Engineering input where the design requires it
- Phase 02
Specifications
- Sprinkler selection and spacing calculations
- Water coverage and flow rate calculations
- Pump selection and sizing for the property
- Phase 03
Installation
- 316 stainless steel rooftop pipework
- Stainless brackets, fixings and roof penetrations
- Sprinkler heads and drop lines
- Pump housing, mounting and plumbing connections
- Supply line from tank, dam or mains
- Phase 04
Controls & Handover
- Isolation valves, strainers and non-return protection
- Control and electrical requirements
- Commissioning, pressure testing and coverage check
- Handover, written documentation and a walk-through of how to run it
- Every component is chosen for durability in high-heat, high-UV conditions to suit your property and its geography.
What the Perth Hills Locals Say
- The question everyone arrives with
How Much Does a Bushfire Sprinkler System Cost?
There is no single number, and any plumber who gives you one over the phone is guessing.
The cost comes down to the size and shape of the roof, whether the house is single or double storey, how many sprinkler heads the coverage calculation calls for, the length of the pipe runs, the pump the property needs, what water supply is already there, and how much control and monitoring you want.
A single-storey home with a tank and a usable pump already in place sits at the lower end. A large double-storey home with complex roof lines, a new tank, a new pump and full remote monitoring sits well above that.
What Andrew does is assess the property, design to it, and give you a written quote that itemises the pipework, the sprinklers, the pump and the controls separately, so you can see where the money is going and compare it properly against anyone else’s quote.
If the number is more than you want to spend, the design can usually be staged, protecting the most exposed part of the property first and adding to it later, provided the pump and supply are sized for the full system from the start.
Quick Enquiry
Tell Andrew a bit about the property and he’ll call you back to talk through what it needs.
We use these details to call you back about your enquiry. Nothing else.
Bushfire Sprinkler Questions, Answered
Do I need engineering approval or council approval for a roof sprinkler system?
Can a system run off a rainwater tank, or does it need a dedicated supply?
What happens if the power goes out?
Can you work with a pump I already have?
How long does an installation take?
Does the system need maintenance?
Do you install these outside the Perth Hills?
One Part of a Bushfire Plan
A roof sprinkler system is designed to reduce the risk of ignition from embers. It is not a guarantee against bushfire damage and it should be considered as one part of a broader bushfire preparedness strategy.
- Local bushfire protection
Bushfire Protection Across the Perth Hills
Risk isn’t evenly spread across the Hills. Properties backing onto reserve around Kalamunda and Roleystone deal with heavy fuel load right at the boundary. Around Mundaring, Glen Forrest and Parkerville it’s mature jarrah and marri over the roof, so gutters and roof valleys collect leaf litter faster than anyone keeps up with. Larger semi-rural blocks bring sheds and outbuildings well away from the house and tanks that sit downhill from the buildings they have to protect. Andrew designs to what’s actually behind your block.
Based in the Perth Hills, AH Plumbing and Gas services the Hills and surrounding suburbs, with the flexibility to travel further when required. Wherever you need us, we’ll do our best to get there.
Talk It Through Before You Spend Anything
The quickest way to know what your property needs is a conversation about the block, the roof and the water you’ve got. Call Andrew, or send the details through and he’ll call you back.
Monday to Friday
We use these details to call you back about your enquiry. Nothing else.